我只是在绝望中写这篇文章:)我被指派为Android 1.6手机制作一个独立的条码扫描器(作为概念证明)。
为此,我发现了ZXing库。
我用谷歌搜索,在StackOverflow上阅读相关主题,使用常见等等。似乎没有任何帮助,我只是不能在这个封锁上打个洞:/
我知道可以使用lib,并创建自己的独立条形码扫描仪。我读过使用Zxing人提供的“条码扫描器”,这是迄今为止最简单的解决方案(通过Intent)。不幸的是,这不是一个选项,需要一个独立的应用程序。
总结我的问题:
我试图让我的代码项目依赖于ZXing源文件夹中的Android文件夹。当我这样做时,会出现一些错误,主要涉及'org.apache'(??)
我无法理解......所以一些提示最有帮助。
提前,谢谢:)
答案 0 :(得分:125)
我已经设法解决了:)在下面你可以阅读分步指南,所以它希望可以帮助其他人解决与我相同的问题;)
zxing src
的根目录。ant -f core/build.xml
按回车键让Apache发挥其魔力[ having issues? ] core.jar
...按Enter键!现在您只需更正翻译和AndroidManifest.xml文件中的一些错误:)现在您可以愉快地编译,现在您将拥有一个基于ZXing源的独立条码扫描器应用程序;)
快乐的编码人 - 我希望它能帮助别人:)
答案 1 :(得分:80)
以下是如何使用ZXing库生成和显示QR码的分步指南,无需安装第三方应用程序。 注意:您不必使用ANT或任何其他构建工具构建ZXing。文件core.jar
在已发布的zip存档中可用(如下所示)。
ZXing-*.zip
)core.jar
目录下找到core/
。core.jar
拖放到Android项目的libs
目录中。系统询问时,选择复制。Contents.java
& QRCodeEncoder.java
)复制到Android项目的主程序包中。ImageView
项目以显示生成的二维码。下面给出一个例子:ImageView
。以下是要添加到Activity布局XML文件的ImageView
元素:
<ImageView
android:id="@+id/qrCode"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:layout_centerHorizontal="true"/>
代码段:
// ImageView to display the QR code in. This should be defined in
// your Activity's XML layout file
ImageView imageView = (ImageView) findViewById(R.id.qrCode);
String qrData = "Data I want to encode in QR code";
int qrCodeDimention = 500;
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(qrData, null,
Contents.Type.TEXT, BarcodeFormat.QR_CODE.toString(), qrCodeDimention);
try {
Bitmap bitmap = qrCodeEncoder.encodeAsBitmap();
imageView.setImageBitmap(bitmap);
} catch (WriterException e) {
e.printStackTrace();
}
以下是Contents.java
//
// * Copyright (C) 2008 ZXing authors
// *
// * Licensed under the Apache License, Version 2.0 (the "License");
// * you may not use this file except in compliance with the License.
// * You may obtain a copy of the License at
// *
// * http://www.apache.org/licenses/LICENSE-2.0
// *
// * Unless required by applicable law or agreed to in writing, software
// * distributed under the License is distributed on an "AS IS" BASIS,
// * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// * See the License for the specific language governing permissions and
// * limitations under the License.
//
import android.provider.ContactsContract;
public final class Contents {
private Contents() {
}
public static final class Type {
// Plain text. Use Intent.putExtra(DATA, string). This can be used for URLs too, but string
// must include "http://" or "https://".
public static final String TEXT = "TEXT_TYPE";
// An email type. Use Intent.putExtra(DATA, string) where string is the email address.
public static final String EMAIL = "EMAIL_TYPE";
// Use Intent.putExtra(DATA, string) where string is the phone number to call.
public static final String PHONE = "PHONE_TYPE";
// An SMS type. Use Intent.putExtra(DATA, string) where string is the number to SMS.
public static final String SMS = "SMS_TYPE";
public static final String CONTACT = "CONTACT_TYPE";
public static final String LOCATION = "LOCATION_TYPE";
private Type() {
}
}
public static final String URL_KEY = "URL_KEY";
public static final String NOTE_KEY = "NOTE_KEY";
// When using Type.CONTACT, these arrays provide the keys for adding or retrieving multiple phone numbers and addresses.
public static final String[] PHONE_KEYS = {
ContactsContract.Intents.Insert.PHONE, ContactsContract.Intents.Insert.SECONDARY_PHONE,
ContactsContract.Intents.Insert.TERTIARY_PHONE
};
public static final String[] PHONE_TYPE_KEYS = {
ContactsContract.Intents.Insert.PHONE_TYPE,
ContactsContract.Intents.Insert.SECONDARY_PHONE_TYPE,
ContactsContract.Intents.Insert.TERTIARY_PHONE_TYPE
};
public static final String[] EMAIL_KEYS = {
ContactsContract.Intents.Insert.EMAIL, ContactsContract.Intents.Insert.SECONDARY_EMAIL,
ContactsContract.Intents.Insert.TERTIARY_EMAIL
};
public static final String[] EMAIL_TYPE_KEYS = {
ContactsContract.Intents.Insert.EMAIL_TYPE,
ContactsContract.Intents.Insert.SECONDARY_EMAIL_TYPE,
ContactsContract.Intents.Insert.TERTIARY_EMAIL_TYPE
};
}
QRCodeEncoder.java
/*
* Copyright (C) 2008 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import android.provider.ContactsContract;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.telephony.PhoneNumberUtils;
import java.util.Collection;
import java.util.EnumMap;
import java.util.HashSet;
import java.util.Map;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
public final class QRCodeEncoder {
private static final int WHITE = 0xFFFFFFFF;
private static final int BLACK = 0xFF000000;
private int dimension = Integer.MIN_VALUE;
private String contents = null;
private String displayContents = null;
private String title = null;
private BarcodeFormat format = null;
private boolean encoded = false;
public QRCodeEncoder(String data, Bundle bundle, String type, String format, int dimension) {
this.dimension = dimension;
encoded = encodeContents(data, bundle, type, format);
}
public String getContents() {
return contents;
}
public String getDisplayContents() {
return displayContents;
}
public String getTitle() {
return title;
}
private boolean encodeContents(String data, Bundle bundle, String type, String formatString) {
// Default to QR_CODE if no format given.
format = null;
if (formatString != null) {
try {
format = BarcodeFormat.valueOf(formatString);
} catch (IllegalArgumentException iae) {
// Ignore it then
}
}
if (format == null || format == BarcodeFormat.QR_CODE) {
this.format = BarcodeFormat.QR_CODE;
encodeQRCodeContents(data, bundle, type);
} else if (data != null && data.length() > 0) {
contents = data;
displayContents = data;
title = "Text";
}
return contents != null && contents.length() > 0;
}
private void encodeQRCodeContents(String data, Bundle bundle, String type) {
if (type.equals(Contents.Type.TEXT)) {
if (data != null && data.length() > 0) {
contents = data;
displayContents = data;
title = "Text";
}
} else if (type.equals(Contents.Type.EMAIL)) {
data = trim(data);
if (data != null) {
contents = "mailto:" + data;
displayContents = data;
title = "E-Mail";
}
} else if (type.equals(Contents.Type.PHONE)) {
data = trim(data);
if (data != null) {
contents = "tel:" + data;
displayContents = PhoneNumberUtils.formatNumber(data);
title = "Phone";
}
} else if (type.equals(Contents.Type.SMS)) {
data = trim(data);
if (data != null) {
contents = "sms:" + data;
displayContents = PhoneNumberUtils.formatNumber(data);
title = "SMS";
}
} else if (type.equals(Contents.Type.CONTACT)) {
if (bundle != null) {
StringBuilder newContents = new StringBuilder(100);
StringBuilder newDisplayContents = new StringBuilder(100);
newContents.append("MECARD:");
String name = trim(bundle.getString(ContactsContract.Intents.Insert.NAME));
if (name != null) {
newContents.append("N:").append(escapeMECARD(name)).append(';');
newDisplayContents.append(name);
}
String address = trim(bundle.getString(ContactsContract.Intents.Insert.POSTAL));
if (address != null) {
newContents.append("ADR:").append(escapeMECARD(address)).append(';');
newDisplayContents.append('\n').append(address);
}
Collection<String> uniquePhones = new HashSet<String>(Contents.PHONE_KEYS.length);
for (int x = 0; x < Contents.PHONE_KEYS.length; x++) {
String phone = trim(bundle.getString(Contents.PHONE_KEYS[x]));
if (phone != null) {
uniquePhones.add(phone);
}
}
for (String phone : uniquePhones) {
newContents.append("TEL:").append(escapeMECARD(phone)).append(';');
newDisplayContents.append('\n').append(PhoneNumberUtils.formatNumber(phone));
}
Collection<String> uniqueEmails = new HashSet<String>(Contents.EMAIL_KEYS.length);
for (int x = 0; x < Contents.EMAIL_KEYS.length; x++) {
String email = trim(bundle.getString(Contents.EMAIL_KEYS[x]));
if (email != null) {
uniqueEmails.add(email);
}
}
for (String email : uniqueEmails) {
newContents.append("EMAIL:").append(escapeMECARD(email)).append(';');
newDisplayContents.append('\n').append(email);
}
String url = trim(bundle.getString(Contents.URL_KEY));
if (url != null) {
// escapeMECARD(url) -> wrong escape e.g. http\://zxing.google.com
newContents.append("URL:").append(url).append(';');
newDisplayContents.append('\n').append(url);
}
String note = trim(bundle.getString(Contents.NOTE_KEY));
if (note != null) {
newContents.append("NOTE:").append(escapeMECARD(note)).append(';');
newDisplayContents.append('\n').append(note);
}
// Make sure we've encoded at least one field.
if (newDisplayContents.length() > 0) {
newContents.append(';');
contents = newContents.toString();
displayContents = newDisplayContents.toString();
title = "Contact";
} else {
contents = null;
displayContents = null;
}
}
} else if (type.equals(Contents.Type.LOCATION)) {
if (bundle != null) {
// These must use Bundle.getFloat(), not getDouble(), it's part of the API.
float latitude = bundle.getFloat("LAT", Float.MAX_VALUE);
float longitude = bundle.getFloat("LONG", Float.MAX_VALUE);
if (latitude != Float.MAX_VALUE && longitude != Float.MAX_VALUE) {
contents = "geo:" + latitude + ',' + longitude;
displayContents = latitude + "," + longitude;
title = "Location";
}
}
}
}
public Bitmap encodeAsBitmap() throws WriterException {
if (!encoded) return null;
Map<EncodeHintType, Object> hints = null;
String encoding = guessAppropriateEncoding(contents);
if (encoding != null) {
hints = new EnumMap<EncodeHintType, Object>(EncodeHintType.class);
hints.put(EncodeHintType.CHARACTER_SET, encoding);
}
MultiFormatWriter writer = new MultiFormatWriter();
BitMatrix result = writer.encode(contents, format, dimension, dimension, hints);
int width = result.getWidth();
int height = result.getHeight();
int[] pixels = new int[width * height];
// All are 0, or black, by default
for (int y = 0; y < height; y++) {
int offset = y * width;
for (int x = 0; x < width; x++) {
pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
}
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
}
private static String guessAppropriateEncoding(CharSequence contents) {
// Very crude at the moment
for (int i = 0; i < contents.length(); i++) {
if (contents.charAt(i) > 0xFF) { return "UTF-8"; }
}
return null;
}
private static String trim(String s) {
if (s == null) { return null; }
String result = s.trim();
return result.length() == 0 ? null : result;
}
private static String escapeMECARD(String input) {
if (input == null || (input.indexOf(':') < 0 && input.indexOf(';') < 0)) { return input; }
int length = input.length();
StringBuilder result = new StringBuilder(length);
for (int i = 0; i < length; i++) {
char c = input.charAt(i);
if (c == ':' || c == ';') {
result.append('\\');
}
result.append(c);
}
return result.toString();
}
}
答案 2 :(得分:15)
compile 'com.google.zxing:core:2.3.0'
不幸的是没有为我工作。
这对我有用:
dependencies {
compile 'com.journeyapps:zxing-android-embedded:3.0.1@aar'
compile 'com.google.zxing:core:3.2.0'
}
请在此处找到链接: https://github.com/journeyapps/zxing-android-embedded
答案 3 :(得分:11)
如果ant -f core/build.xml
说的话如下:
Unable to locate tools.jar. Expected to find it in
C:\Program Files\Java\jre6\lib\tools.jar
然后将您的JAVA_HOME
环境变量设置为正确的java文件夹。我在我的(Windows)中找到了tools.jar:
C:\Program Files\Java\jdk1.6.0_21\lib
所以我将JAVA_HOME
设置为:
C:\Progra~1\Java\jdk1.6.0_25
我在某个网站上发现的语法较短的原因是:
然后我重新启动了cmd(很重要,因为DOS shell在启动时只读取env变量,因此更改env var将要求您使用新的shell来获取更新的值)“强烈建议你 选择一个安装目录 路径中不包含空格 名称(例如,不要安装在 C:\ Program Files)。如果是Java 安装在这样的目录中,它是 设置JAVA_HOME至关重要 环境变量到一个路径 不包括空格(例如, C:\ PROGRA〜1);不这样做会 导致某些人抛出异常 依赖于价值的程序 JAVA_HOME“。
最后ant -f core/build.xml
工作了。
答案 4 :(得分:11)
由于一些答案已经过时,我想提供我自己的答案 -
要按照their Wiki的建议将ZXing库集成到Android应用中,您需要在项目中添加2个Java文件:
然后在 Android Studio 中将以下行添加到 build.gradle 文件中:
dependencies {
....
compile 'com.google.zxing:core:3.2.1'
}
或者如果仍然使用带有ADT-plugin的 Eclipse 将core.jar文件添加到项目的 libs 子目录中(此处为fullscreen Windows和{{ 3}}):
最后将此代码添加到您的fullscreen Mac:
public void scanQRCode(View v) {
IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);
integrator.initiateScan(IntentIntegrator.QR_CODE_TYPES);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
IntentResult result =
IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
if (result != null) {
String contents = result.getContents();
if (contents != null) {
showDialog(R.string.result_succeeded, result.toString());
} else {
showDialog(R.string.result_failed,
getString(R.string.result_failed_why));
}
}
}
private void showDialog(int title, CharSequence message) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(title);
builder.setMessage(message);
builder.setPositiveButton(R.string.ok_button, null);
builder.show();
}
生成的应用会要求安装并启动MainActivity.java(扫描后会自动返回您的应用):
此外,如果您想构建并运行Barcode Scanner app by ZXing作为您自己的应用的灵感:
然后你需要来自ZXing Test app的4个Java文件:
来自GitHub的3个Jar文件:
(您可以使用mvn package
自行构建Jar文件 - 如果您从GitHub查看ZXing并在您的计算机上安装 ant 和 maven 工具)。
注意:如果您的项目无法识别Jar文件,则可能需要在项目属性中启动Java版本:
答案 5 :(得分:4)
把
compile 'com.google.zxing:core:2.3.0'
进入Gradle依赖项。就这么简单。在使用Android Studio和Gradle构建系统之前。
答案 6 :(得分:4)
您是否在zxing网站上看到了wiki pages?您似乎可能会发现GettingStarted,DeveloperNotes和ScanningViaIntent有帮助。
答案 7 :(得分:2)
zxing家伙用1.7创建一个Android项目更容易。它不像过去那样痛苦。对于想要快速为android创建zxing项目的人来说,这是一个快速博客。
zxing 1.7(6月20日结账)的Android项目。
http://www.4shared.com/file/bFx8Y5Ys/zXingJune2010.html (无法提供任何)
答案 8 :(得分:2)
如果你只需要zxing的core.jar,你可以跳过这个过程并从GettingStarted wiki page
获取预先构建的JAR最新ZXing(2.2)在核心文件夹下没有core.jar,但您可以从zxing Maven repository here
获取core.jar答案 9 :(得分:2)
在eclipse中逐步设置zxing 3.2.1
答案 10 :(得分:2)
我尝试了所有可能的方法来实现这一点,然后我发现了JourneyApps的缩小版xZing。我已将其移植到eclipse并在GitHub上共享。
如果您正在使用eclipse,请使用此项目: -
https://github.com/hiteshsahu/XZing-Barcode-Scanner-Minified-Eclipse
如果您使用的是Studio,请使用此项目: -
https://github.com/journeyapps/zxing-android-embedded
优势
您应用中的内置条码扫描器不需要使用Playstore安装第三方应用。
你不需要在Core,Android客户端等之间混淆jars只需在你的项目中删除这些包和相关的布局,你就可以了。只需要Jar com.google.zxing:core:3.2.0 ,您可以从
下载http://mvnrepository.com/artifact/com.google.zxing/core/3.2.0
无需添加大量软件包请参阅下面的图片进行比较
之前: -
之后: -
最重要的部分是高度可定制即。你可以添加闪光灯,在碎片中使用它并支持方向改变。
您可以在 Cordova App 中使用此Capture活动进行条形码扫描。
您在应用清单中的捕获活动看起来像这样
<activity
android:name="com.journeyapps.barcodescanner.CaptureActivity"
android:clearTaskOnLaunch="true"
android:configChanges="orientation|keyboardHidden"
android:exported="false"
android:screenOrientation="fullSensor"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
android:windowSoftInputMode="stateAlwaysHidden" >
<intent-filter>
<action android:name="com.google.zxing.client.android.SCAN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
和插件看起来像这样
public class BarcodeScanner extends CordovaPlugin {
public static final int REQUEST_CODE = 0x0ba7c0de;
private static final String SCAN = "scan";
private static final String CANCELLED = "cancelled";
private static final String FORMAT = "format";
private static final String TEXT = "text";
private static final String SCAN_INTENT = "com.google.zxing.client.android.SCAN";
private static final String LOG_TAG = "BarcodeScanner";
private CallbackContext callbackContext;
/**
* Constructor.
*/
public BarcodeScanner() {
}
/**
* Executes the request.
*
* This method is called from the WebView thread. To do a non-trivial amount of work, use:
* cordova.getThreadPool().execute(runnable);
*
* To run on the UI thread, use:
* cordova.getActivity().runOnUiThread(runnable);
*
* @param action The action to execute.
* @param args The exec() arguments.
* @param callbackContext The callback context used when calling back into JavaScript.
* @return Whether the action was valid.
*
* @sa https://github.com/apache/cordova-android/blob/master/framework/src/org/apache/cordova/CordovaPlugin.java
*/
@Override
public boolean execute(String action, JSONArray args, CallbackContext callbackContext) {
this.callbackContext = callbackContext;
if (action.equals(SCAN)) {
scan(args);
} else {
return false;
}
return true;
}
/**
* Starts an intent to scan and decode a barcode.
*/
public void scan(JSONArray args) {
Intent intentScan = new Intent(SCAN_INTENT);
intentScan.addCategory(Intent.CATEGORY_DEFAULT);
// add config as intent extras
if(args.length() > 0) {
JSONObject obj;
JSONArray names;
String key;
Object value;
for(int i=0; i<args.length(); i++) {
try {
obj = args.getJSONObject(i);
} catch(JSONException e) {
Log.i("CordovaLog", e.getLocalizedMessage());
continue;
}
names = obj.names();
for(int j=0; j<names.length(); j++) {
try {
key = names.getString(j);
value = obj.get(key);
if(value instanceof Integer) {
intentScan.putExtra(key, (Integer)value);
} else if(value instanceof String) {
intentScan.putExtra(key, (String)value);
}
} catch(JSONException e) {
Log.i("CordovaLog", e.getLocalizedMessage());
continue;
}
}
}
}
// avoid calling other phonegap apps
intentScan.setPackage(this.cordova.getActivity().getApplicationContext().getPackageName());
this.cordova.startActivityForResult((CordovaPlugin) this, intentScan, REQUEST_CODE);
}
/**
* Called when the barcode scanner intent completes.
*
* @param requestCode The request code originally supplied to startActivityForResult(),
* allowing you to identify who this result came from.
* @param resultCode The integer result code returned by the child activity through its setResult().
* @param intent An Intent, which can return result data to the caller (various data can be attached to Intent "extras").
*/
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == REQUEST_CODE) {
if (resultCode == Activity.RESULT_OK) {
JSONObject obj = new JSONObject();
try {
obj.put(TEXT, intent.getStringExtra("SCAN_RESULT"));
obj.put(FORMAT, intent.getStringExtra("SCAN_RESULT_FORMAT"));
obj.put(CANCELLED, false);
} catch (JSONException e) {
Log.d(LOG_TAG, "JSONException "+e.getMessage());
}
this.callbackContext.success(obj);
} else if (resultCode == Activity.RESULT_CANCELED) {
this.callbackContext.success("");
} else {
this.callbackContext.error("Technical Problem");
}
}
}
}
快乐融合!!
答案 11 :(得分:2)
为什么使用外部lib,当谷歌播放服务(因为版本7.8.0)包括条形码解码器。
答案 12 :(得分:1)
我刚写了一个方法,将生成的条形码Bitmap
解码为String
。
它完全符合要求,只是没有CaptureActivity
...
因此,可以跳过android-integration
中的build.gradle
库:
dependencies {
// https://mvnrepository.com/artifact/com.google.zxing
compile('com.google.zxing:core:3.3.0')
compile('com.google.zxing:android-core:3.3.0')
}
以下方法(实际上在jUnit测试中解码生成的条形码):
import android.graphics.Bitmap;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.RGBLuminanceSource;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.Result;
protected String decode(Bitmap bitmap) {
MultiFormatReader reader = new MultiFormatReader();
String barcode = null;
int[] intArray = new int[bitmap.getWidth() * bitmap.getHeight()];
bitmap.getPixels(intArray, 0, bitmap.getWidth(), 0, 0, bitmap.getWidth(), bitmap.getHeight());
LuminanceSource source = new RGBLuminanceSource(bitmap.getWidth(), bitmap.getHeight(), intArray);
BinaryBitmap binary = new BinaryBitmap(new HybridBinarizer(source));
try {
Result result = reader.decode(binary);
// BarcodeFormat format = result.getBarcodeFormat();
// ResultPoint[] points = result.getResultPoints();
// byte[] bytes = result.getRawBytes();
barcode = result.getText();
} catch (NotFoundException e) {
e.printStackTrace();
}
return barcode;
}
答案 13 :(得分:1)
2020更新:只需将其添加到您的Gradle文件中即可。效果很好!
repositories {
jcenter()
}
implementation 'me.dm7.barcodescanner:zxing:1.9.13'
答案 14 :(得分:0)
更容易接近。
只需在您的应用级草图文件中包含依赖项
compile 'com.journeyapps:zxing-android-embedded:3.0.1@aar'
compile 'com.google.zxing:core:3.2.0'
在xml文件中定义一个按钮,然后在OnCreate()和按钮的OnClick侦听器
内的Java文件中编写代码new IntentIntegrator(this).initiateScan();
在Java文件
的OnCreate()之后写下面的代码@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
if(result != null) {
if(result.getContents() == null) {
Log.d("MainActivity", "Cancelled scan");
Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show();
} else {
Log.d("MainActivity", "Scanned");
String st_scanned_result = result.getContents();
Toast.makeText(this, "Scanned: " + result.getContents(), Toast.LENGTH_LONG).show();
}
}
}
答案 15 :(得分:0)
我最近在ios和android中都使用了谷歌手机视觉。我强烈建议您使用谷歌条码扫描。它对任何方向都非常敏感,处理时间非常快。它被称为谷歌移动视觉。
Barcode Scanner API可以实时检测条形码 取向。您还可以检测并解析几个条形码 同时使用不同的格式。
https://developers.google.com/vision/
https://codelabs.developers.google.com/codelabs/bar-codes/#0
答案 16 :(得分:0)
此库的工作原理很吸引人,易于集成和使用。 https://github.com/dm77/barcodescanner